1. DIgSILENT GmbH 2017 “PowerFactory.” http://digsilent.de/.
2. NEPLAN AG 2017 “PowerFactory.” http://www.neplan.ch/.
3. PowerWorld Corporation 2017 “PowerWorld.” https://www.powerworld.com/.
4. Siemens AG 2017 “PSS/E.” http://w3.siemens.com/smartgrid/global/en/products-systems-solutions/software-solutions/planning-data-management-software/planning-simulation/Pages/PSS-E.aspx.
5. Siemens AG 2017 “PSS/SINCAL.” http://w3.siemens.com/smartgrid/global/en/products-systems-solutions/software-solutions/planning-data-management-software/planning-simulation/pss-sincal/pages/pss-sincal.aspx.